Home / 198,573.75-274,031.78-109,149.75

Finding the Fourth Proportional to 198,573.75, 274,031.78 and 109,149.75

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Solution

The fourth proportional to 198,573.75, 274,031.78 and 109,149.75 is: 150,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,573.75 : 274,031.78 = 109,149.75 : x
  2. Step 2: Convert to fraction form
    198,573.75/274,031.78 = 109,149.75/x
  3. Step 3: Cross multiply
    198,573.75x = 274,031.78 × 109,149.75
  4. Step 4: Simplify right side
    198,573.75x = 29,910,500,279.06
  5. Step 5: Solve for x
    x = 29,910,500,279.06/198,573.75
  6. Step 6: Final answer
    x = 150,626.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.